Lower estimates for the error of best uniform approximation

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S U326 P30-28 Lower Estimates for the Error of Best Uniform Approximation

i i L ! In this paper the lower bounds of de La Vall&e Poussin -_ and Remes for the error of best uniform approximation from a linear subspace are generalized to give analogous estimates based on k points, k = l,...,n . Introduction. In this paper we shall generalize the lower bounds of de La Vallke Poussin and Remes [2, p.821 for the error of best uniform approximation from a linear subspace. ...

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ژورنال

عنوان ژورنال: Journal of Approximation Theory

سال: 1976

ISSN: 0021-9045

DOI: 10.1016/0021-9045(76)90044-7